package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    //新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增员工信息{}",employee.toString());
        //密码加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

        //添加时间和修改时间,交给自动填充类管理
      /*  employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        //获取登录用户的ID
        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);*/

        //调用添加方法进行添加
        employeeService.save(employee);

        return R.success("新增员工成功");
    }

    //员工分页查询
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page={},pageSize={},name={}",page,pageSize,name);

        //分页构造器
        Page pageInfo = new Page();

        //条件构造器
        LambdaQueryWrapper <Employee> queryWrapper = new LambdaQueryWrapper();

        //添加过滤器
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    //员工的启用禁用
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        log.info(employee.toString());

        //获取登录用户的ID,交给自动填充类管理
       /* Long empId = (Long) request.getSession().getAttribute("employee");

        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(empId);*/

        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    //编辑员工
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id) {
        log.info("根据ID查询员工信息...");

        Employee employee = employeeService.getById(id);
        if (employee!=null){
            return R.success(employee);
        }

        return R.error("没有查询到该员工信息");
    }
}
